Ore and like separating means.



APPLCATION Sept PnLeHted l eine ol A... AL;

CNE-HALF 'EO A.

BRNGIER, F AGNE'W, CALIEORNA.

@RE ANB LIKE SEPARATNG JIEANS.

Application filed April 5, 1912.

Specification of Letters Eatent. YL

Serial No. 688,699.

To [7/ '157mm may concern.

loit known that Llienim ,leninn'7 n Citizen of Frunfe. residing in the Citi7 unil County ot' Sun Francisco and State of California. have inventeil new :nul useful improvements in Ure :nul Like Separntingl Means, of wllii'h the following' is n specification.

My invention relates to :t means for the ilry sepnrntion of ores.

It ronsisls in- :illowing finelyv pulverizetl nuiterinls of (liilerent grnviiies to fall through Cahn nir unil be received upon :t constantly moving surface et such a distance helow that the heavier particles will he rei'eiveil upon one prilrt of the table or surface, :nul the lighter particles which will :irrive inter. will full upon the part hehintl that reeeivine the heavier portion.

Ylhe inveniion consists of the piu-ts :mil the eonsii'ui'tion zuul eonihinntion of paris :is hereinniier more full)Y ileseriheil unil ilniniei. luiving reference to the nei'ronipnnjving ilrnwinfg. in whichv the ligure is :i perspective. view illuslmling` in v invention.

This invention ilepenils upon the. iliiierence in the time ot falling of particles pulverieil to the suine (legi-ee ot lineness unil depends upon the followingY principles which unflerlie the niethoil: ln pulver-ized metal-bearingY rocks there is for euch liincl :L special (legi-ee ot neness :it which the pulp is eoniposel of grains oi' ore nml grains of gnngue iniliviilunlly pure unil free from ezieh other. So long' is sueh :i degree of liueness is not reached, 1'.. e.. with lgrains of grenier size5 ihe ganglio mul the ore eooXist in euch grain. As fur :is lhe usunl metals :ire concerned the ore is. in inost enses, of n higher ilensily than its enligne. 'i`wo bodies of the szune liniension hut oi cliifereut densities hein;r lroppeil trom n given height at they suine linie woulil lil ewise. reach the ground :it the .suine time ii the, full Should talco plnre in n viii-umn. li'. however, the `lizill he ell'ecleil in i'zihn nii', unil proviilecl the iliniensionsv oi' ilul two hoilies nre snmll enough. lhe resislzuu'e olE the :iir will ('nusi, the ileuser hoilv lo rem-l1 lhe ground lirst. Ilhe inlorvnls ol' time hw lwein ille, nl'z'ivnlsr ol' the lwo hoiliisA will inireuso willi the ilillerenie in lleusilios' :inil ille heir'. l` ol l'zill. ll. lherel'oi'i'. :t pulp ol exi-ilziin logren of iineness is lo lie in n hox hzilvinn l'ozils hotoiu u ,seri-en. tho mesh I ihil Here/en cnn :ilwzivs he @hosen :i

little hiel-ger than that of the grains, hut ,lust enough however to prevent any one grain from escaping' the mesi es :is long as the screen kept perfectlj.r motionless. lf now :i gentle knock be given the frame., it would instantly muse one ,05min to escape from most of the meshes, and the mesh size has been properbv selected only one grain will escape from each mesh until another knot-li or disturbance is 4given.

The inetzil-hsiring rock is erusheil unil pulverized to a degree of ineness it which the pulp consists almost exelusivel;v of grains o' individually pure ore or giingue, rl`he grains are then inside przirticulljy' isometric, 'a'. tlivi leil in several heap. in euch of which :ill grains :ire about of the suine size. This nmv be obtained hy suei-es'sivelv siftingthe pulp on sieves of inerensing fine; Ohviouslv, li); suih proeess' the pulp run through :i irertnin sil will he eonipl'sei'l exklusiver),v of n is sinziller ihnn the meshes or this unil lurger lhz'in those ot ihr next liner sieve upon whieh the); will huve been reiziinei'l. Such grains having the size helw en the sizes of the meshes oi' two eonseculive leves. l (will isometric, :intl for thel salie oi' brevity l likewise will isometric n pulp composed ol" such isometric grains. lthough nhs@- lute isonietrv nuiy newer he reached. it is :ipinozielnihle :is closely is neeileil. rlfhe result oi' the. successive sifting. :ihove (le seriheil. is lo iliviile the pulp into us niunv heaps us sieves :ire usell. :nul nt this etage of the process erich heup iezulv for operanion h v in v apparatus, which l will n eutavhorimr.

M v invention inny he mn'rieil out hv :in :ippan'zilus which is shown in the neeonip my ineV illuslrnlion.

s here shown. is n verliinl Lsimil which muy he i'olnteil :it n regular veliwil'v of :i

few revolutions per niinule hv :inv suitnhle.

power. rThis shulft llrives nl, iis lower pzirt n irl-uhu' open revolver, which is yshown :is iliviileil inlo two sector-:il parte F :inil l" whivh nre .shzipeil like unnils. Snri-ounllinn the upper purl; of the shaft :intl havin.;l :i renti-:il opening through which the sluil'i. lurnsl freely ure n nuniliil' of .ei-lors 5. llnfnh ,swlor in fuel, :in open ho -shupeil ,sli'ui-lure hzivingf for :t hottoni :i reen, unil. :is here shown. sectors nre :iri'nngeil around n. ifonnnon cenit-r, thus 'forming a here series of receptaeles which taken together form a complete circular receiver. The pulp may be fed into one oill these boxes havin;v a screen so selected that the pulp will stay upon it, and a knock given the lira-me at regular intervals will cause a grain to es? cape from each mesh with each knock. 'l`he center of the screen is about the axis ot' the shaft and its diameter' is substantially the Same as that of the receiver l" below. lach of the sectors S composing' the screen is independent, that is, it has no point ot contact with its neighbors, and, as already stated, the shaft revolves in the middle ot the screen without touching' lit. rl`he pulp to be concentrated is lied to each sector by any suitable feeding' means. s here shown a hopper 2 is provided with a series ot distributers through which the material may pass.

ln order to produce the desired knoch, have shown a rod 4 suspended in line. with the outer periphery ol the sectors, and it may have a weight or protularrance, at 5, sullicicnt to produce the desired knock. ,lust beneath the screen is a rod lit lixed to the shat'tyA. This revolves with the shaft', and as itfpasses each ot the suspended swinging arms 4, itv will push the arln outward. as shown in dotted lines, and passinf.;` will allow it to swing bach and give the sector a gentle knock. This causes grains to l'all troni each of the screen openings, and as they are substantially isometric, those which are ot: pure ore being' heavier will, arrive at the level of the receiver considerably hetore the lighter grains ot' gangue and will thus find 'their way into the tunnel lf; the ganglio grains arriving subseqlu-nlly at the same level but the revolution ot theI shat't' has ;driven aw'ay the l'unnel .tf and placed the 'tunnel I1v instead. As thel respective positions ot the rod lt and the l'nnnels are fixed, the same ol'v conrf-o occurs [or each sector in turn. and all the sectors drop the `frains which are st gregated by fall and collected scbarately .in the tunnel. From *the 'tunnels the ore and the sangue grains are. led into their res lectivo places ot storing'.

The a' ove description illustrates a convenient means to carry ont my invention, but it will be understood that other equivalent arranfremeuts of the apparatus may be emphrved with a like ett'ect.

.llavin` thus described my invention, what l claim and desire to secure by Letters latent is- 1. ln a device ot' the class described in combination` an ammlar series of adjoining iadepelulently agitable screens for feeding sized material, a rotatable sub-divided receptacle directly beneath the annular series ot' screens but placed a substantial distance below the same. means for agitatine each ot' said screens in succession. means tor rotating the receptacle to bringits coniparlments successively beneath each Screen, and means synchronizing' the period of successive agitation of each screen with the rotation ot' said receptacle.

2. ln a device of the class described in combination. a plurality ot imlependently 3. In a device of the class described, anv

annular series ot independently agitable screens t'or 'feeding sized material, a, rotatable sab-divided receptacle directly beneath the annular series oli screens but placed a substantial distance below the same, a plurality ot agitators comprising vertically suspended rods, one being suspended adjacent each screen, a vertical shaft for rotating' said rmteptacle, and agitator arms for said agitator-s mounted on said shaft and adapted to operate said agitators in synclironism with said receptacle as the said sha'lt is rotated.

ln testimony whereof I have hereunto set my hand in the presence of two subscribing witnesses.

PIER RE J U B IEN.

"itnessesz JOHN I1. Hamline, GENEVIEVE S. DONELLN.

saine, 

